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S
PANNING
T
REE
C
OMMANDS
3-107
spanning-tree mode
Use this command to select the Spanning Tree mode for this switch. Use
the
no
form to disable it.
Syntax
spanning-tree mode
{
stp
|
rstp
}
no spanning-tree mode
•
stp
- Spanning Tree Protocol (IEEE 802.1D)
•
rstp
- Rapid Spanning Tree Protocol (IEEE 802.1w)
Default Setting
rstp
Command Mode
Global Configuration
Command Usage
• Spanning Tree Protocol
STP creates one Spanning Tree instance for the entire network. If
multiple VLANs are implemented on a network, the path between
specific VLAN members may be inadvertently disabled to prevent
network loops, thus isolating group members. STP uses RSTP for the
internal state machine, but sends only 802.1D BPDUs.
• Rapid Spanning Tree Protocol
RSTP supports connections to either STP or RSTP nodes by
monitoring the incoming protocol messages and dynamically adjusting
the type of protocol messages the RSTP node transmits, as described
below:
- STP Mode – If the switch receives an 802.1D BPDU after a port’s
migration delay timer expires, the switch assumes it is connected
to an 802.1D bridge and starts using only 802.1D BPDUs.
- RSTP Mode – If RSTP is using 802.1D BPDUs on a port and
receives an RSTP BPDU after the migration delay expires, RSTP
restarts the migration delay timer and begins using RSTP BPDUs
on that port.
Summary of Contents for TigerSwitch 100
Page 2: ......
Page 30: ...SWITCH MANAGEMENT 1 16...
Page 314: ...COMMAND LINE INTERFACE 3 170...
Page 316: ...TROUBLESHOOTING A 2...
Page 330: ...GLOSSARY Glossary 8...
Page 333: ......